CN103776360B - A kind of automatic cutting bed cut-off knife device for detecting deformation - Google Patents
A kind of automatic cutting bed cut-off knife device for detecting deformation Download PDFInfo
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- CN103776360B CN103776360B CN201210407822.2A CN201210407822A CN103776360B CN 103776360 B CN103776360 B CN 103776360B CN 201210407822 A CN201210407822 A CN 201210407822A CN 103776360 B CN103776360 B CN 103776360B
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Abstract
The invention provides a kind of automatic cutting bed cut-off knife device for detecting deformation.Device of the invention carries out real-time detection by the displacement transducer cut-off knife flexural deformation that the cutting cloth in rotary course causes to cut-off knife, the analog voltage signal that will be detected is changed by digitlization, and under programme-control in the microcontroller, analysis is made to cut-off knife deformation first and is judged, then control servomotor and drive the cut-off knife to carry out rotation compensation to the opposite direction that deforms, realize the automatic correction to cut-off knife cut direction.Ensure that the cutting error caused by cut-off knife deformation is controlled in the range of allowing all the time, improve cut quality and precision.
Description
Technical field
The present invention relates to a kind of automatic cutting bed cut-off knife device for detecting deformation.
Background technology
Automatic cutting bed is the high-end product in the middle of clothes CAM device, and it is using Design modelling, the sample in Garment CAD system
Plate is designed, puts the digital informations such as code, discharge, controls automatic manufacturing system, realizes multilayer garment piece automatic cutting.At present certainly
Dynamic cutting mainly originates in the countries such as America and Europe, and offshore company grasps core technology, and equipment price is generally higher, parts and maintenance
Costly, equipment tends not to be repaired in time.
Need a kind of device that to the deformation of automatic cutting bed cut-off knife can detect and correct automatically cut-off knife deformation.
The content of the invention
The main object of the present invention is to provide a kind of automatic cutting bed cut-off knife device for detecting deformation, solves cut-off knife in rotary course
The test problems of the cut-off knife flexural deformation that middle cutting cloth causes, at the same control program according to the detection signal cut-off knife is deformed into
Row is automatic to correct control, reduces because of the cutting error that cut-off knife deformation causes, and improves cut quality and precision.
Automatic cutting bed cut-off knife device for detecting deformation of the invention, including：
One displacement transducer, for the detection of cut-off knife deformation；Displacement transducer is connected with signal acquisition circuit；
One signal acquisition circuit, for entering line translation to the analog voltage that displacement transducer is exported, as the straight of 0~3V
Stream voltage；
One microcontroller, the 0~3V DC voltages for being produced to signal acquisition circuit are digitized treatment, micro-control
Device processed is connected with signal acquisition circuit and servo-driver；Control program is provided with microcontroller；
One servo-driver, control instruction and control servomotor rotation for receiving microcontroller；
One servomotor, for driving cut-off knife to rotate, servomotor is connected with servo-driver, the rotation of servomotor
Axle is connected with cut-off knife.
Automatic cutting bed cut-off knife device for detecting deformation of the invention, the control set in the microcontroller in the detection means
Program, corresponding X numerical value is turned into 0~3V DC voltages digitized processing that signal acquisition circuit is produced, and the scope of X numerical value is
0~4095, the value according to X judges the deformation of cut-off knife, and to the automatic correction of cut-off knife deformation, in turn includes the following steps：
A, the value for recording X when cut-off knife does not deform first, the value are defined as B；
B, when 0<X<During B, represent that cut-off knife deforms clockwise, at this moment program sends counterclockwise rotates to servo-driver
Compensating instruction, make servomotor rotate counterclockwise, so as to drive cut-off knife to rotate；
C, work as B<X<When 4095, represent that cut-off knife deforms counterclockwise, at this moment program sends clockwise to servo-driver
The compensating instruction of rotation, makes servomotor turn clockwise, so as to drive cut-off knife to rotate；
The value of d, real-time detection X；In the presence of finding to there is cut-off knife to deform, step b or c are just repeated；When detecting X=
B, when not had cut-off knife to deform, does not just compensate.
Automatic cutting bed cut-off knife device for detecting deformation of the present invention, feelings are deformed using real-time Simulation sample detecting cut-off knife
Condition, and the compensation that cut-off knife rotates is determined according to deflection, control cut-off knife rotates to the direction opposite with deformation, so as to realize to cutting out
The automatic correction of knife deformation.
Brief description of the drawings
Fig. 1 is the block diagram of automatic cutting bed cut-off knife device for detecting deformation of the invention；
Fig. 2 is the block diagram for illustrating signal acquisition circuit；
Fig. 3 is the block diagram for illustrating servo-drive closed-loop control；
Fig. 4 is to illustrate to carry out cut-off knife deformation real-time detection and the automatic control program flow chart corrected.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
The structured flowchart of automatic cutting bed cut-off knife device for detecting deformation of the invention as shown in figure 1, including：
One displacement transducer 1, for the detection of cut-off knife deformation；Displacement transducer 1 is connected with signal acquisition circuit 2；
One signal acquisition circuit 2, for entering line translation to the analog voltage that displacement transducer 1 is exported, as 0~3V's
DC voltage；
One microcontroller 3, it is micro- for being digitized treatment to 0~3V DC voltages that signal acquisition circuit 2 is produced
Controller 3 is connected with signal acquisition circuit 2 and servo-driver 4；Control program is provided with microcontroller 3；
One servo-driver 4, control instruction and control servomotor 5 for receiving microcontroller 3 rotate；
One servomotor 5, for driving cut-off knife 6 to rotate, servomotor 5 is connected with servo-driver 4, servomotor 5
Rotary shaft be connected with cut-off knife 6.
Displacement transducer 1 is the important component of cut-off knife deformation detection control, using Eddy current displacement sensor, such as
KEYENCE EX-200 series.Displacement transducer 1 is fixedly mounted on the side of cut-off knife 6, can accurately measure the eccentric of cut-off knife with
Deflection deformation, and the displacement of deformation is exported in the way of analog voltage.
Detection means of the invention and control program together form it is a set of can to cut-off knife deform real-time detection, and to deformation
Carry out the closed-loop control system of automatic correction.
The block diagram of the signal acquisition circuit 2 in the present invention is as shown in Figure 2.The analog voltage letter of the output of displacement transducer 1
Number processed through operational amplifier scaling circuit 11, the DC voltage for becoming 0~3V is transferred to the ADC ports of dsp chip 12.
The optional LM324 of operational amplifier.
Microcontroller 3 in the present invention processes dsp chip 12, model using high performance digital signal
TMS320F28332, the dsp chip has 12 ADC interfaces of precision, easily can be converted to 0~3V of analog input voltage
Numeral 0~4095.Its internal control program for setting sends control instruction to servo-driver 4 simultaneously, makes servomotor 5 and cuts out
Knife 6 is rotated by specific control requirement.
Servo-drive closed-loop control block figure in the present invention is as shown in Figure 3.Microcontroller 3 sends to servo-driver 4
Given instruction, makes servomotor 5 and cut-off knife 6 start rotation；The deformation that position sensor 1 is produced when being rotated to cut-off knife 6 is examined
Survey, and testing result is fed back into microcontroller 3；Microcontroller 3 sends corresponding compensation and refers to according to the deformation of cut-off knife 6
Order, and synthesized given instruction and compensating instruction by control instruction integrated treatment program 21, eventually form to issue and watched
Take the actual control instruction of driver 4；Realize the closed-loop control to servomotor 5 and the rotary motion of cut-off knife 6.
Cut-off knife deformation real-time detection and automatic correction control program flow chart in the present invention is as shown in Figure 4.Microcontroller 3
0~3V DC voltages digitized processing that the control program of middle setting is produced to signal acquisition circuit 2 turns into corresponding X numerical value, X
The scope of numerical value is 0~4095, and the value according to X judges the deformation of cut-off knife, and to the automatic correction of cut-off knife deformation, program circuit
It is described as follows：
The flow startup after step 31 is started；
Step 32 is detected to the deformation of cut-off knife；
The analog voltage signal that step 33 pair is detected is digitized and is processed as specific numerical value X；
When material cut out, cut-off knife will not deform, and step 34 records the value of X when cut-off knife does not deform, and will
The value is defined as B；
Step 35 judged cut-off knife deformation according to the value of X, then selects different flow chart branches to perform；
When 0<X<During B, step 36 judges that cut-off knife occurs deformation clockwise, and step 37 sends counterclockwise to servo-driver
The compensating instruction that direction rotates, step 38 makes servomotor rotate counterclockwise, and drives cut-off knife to rotate；
Work as B<X<When 4095, step 39 judges that cut-off knife occurs deformation counterclockwise, and step 40 sends suitable to servo-driver
The compensating instruction of clockwise rotation, step 41 makes servomotor turn clockwise, and drives cut-off knife to rotate；
Program is constantly detected to the deformation of cut-off knife, and analyzes the X values for detecting in real time, when discovery has sanction
In the presence of knife deformation, step 36~38 or step 39~41 are just repeated；
When X=B is detected, step 42 judges that cut-off knife does not deform, and step 43 terminates the flow.
Under rotation status during cutting cloth, the cut-off knife moment is in torsional deformation state, therefore cutting track and reason to cut-off knife
Think that there is certain error track.The present invention carries out real-time detection to automatic cutting bed cut-off knife deformation, and controls servomotor to sanction
Knife deforms opposite direction carries out rotation compensation, realizes the automatic correction to cut-off knife cut direction, it is ensured that cut-off knife cutting track
Error control in the range of allowing all the time, improve cut quality and precision.
Claims (1)
1. a kind of automatic cutting bed cut-off knife device for detecting deformation, it is characterised in that the detection means includes：
One displacement transducer（1）, for the detection of cut-off knife deformation；Displacement transducer（1）With signal acquisition circuit（2）It is connected；
One signal acquisition circuit（2）, for displacement transducer（1）The analog voltage of output enters line translation, as 0~3V's
DC voltage；
One microcontroller（3）, for signal acquisition circuit（2）0~3V the DC voltages for producing are digitized treatment, micro-
Controller（3）With signal acquisition circuit（2）And servo-driver（4）Connection；Microcontroller（3）In be provided with control program；
One servo-driver（4）, for receiving microcontroller（3）Control instruction and control servomotor（5）Rotation；
One servomotor（5）, for driving cut-off knife（6）Rotation, servomotor（5）With servo-driver（4）Connection, servo electricity
Machine（5）Rotary shaft and cut-off knife（6）Connection；
Described control program, for signal acquisition circuit（2）0~3V DC voltages the digitized processing for producing turns into correspondence
X numerical value, the scope of X numerical value is 0~4095, and the value according to X judges the deformation of cut-off knife, and cut-off knife is deformed entangles automatically
Just；
Described control program, in turn includes the following steps：
A. the value of X when cut-off knife does not deform is recorded first, and the value is defined as B；
B. when 0<X<During B, represent that cut-off knife deforms clockwise, at this moment program is to servo-driver（4）Send counterclockwise rotates
Compensating instruction, make servomotor（5）Rotate counterclockwise, so as to drive cut-off knife（6）Rotation；
C. B is worked as<X<When 4095, represent that cut-off knife deforms counterclockwise, at this moment program is to servo-driver（4）Send rotation clockwise
The compensating instruction for turning, makes servomotor（5）Turn clockwise, so as to drive cut-off knife（6）Rotation；
D. the value of real-time detection X；In the presence of finding to there is cut-off knife to deform, step b or c are just repeated；When X=B is detected,
When there is no cut-off knife to deform, just do not compensate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210407822.2A CN103776360B (en) | 2012-10-24 | 2012-10-24 | A kind of automatic cutting bed cut-off knife device for detecting deformation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210407822.2A CN103776360B (en) | 2012-10-24 | 2012-10-24 | A kind of automatic cutting bed cut-off knife device for detecting deformation |
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| CN103776360A CN103776360A (en) | 2014-05-07 |
| CN103776360B true CN103776360B (en) | 2017-06-06 |
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| CN201210407822.2A Active CN103776360B (en) | 2012-10-24 | 2012-10-24 | A kind of automatic cutting bed cut-off knife device for detecting deformation |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108237252B (en) * | 2016-12-27 | 2019-07-12 | 无锡深南电路有限公司 | A kind of IC support plate high-precision milling machine processing method |
| CN109175417B (en) * | 2018-09-26 | 2020-07-03 | 江苏师范大学 | Theoretical calculation and actual measurement method for quasi-static deformation of turning workpiece |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100136A (en) * | 1987-01-06 | 1988-07-20 | 西安交通大学 | A kind of adaptive controller of numerical control machine and control method |
| CN1038359A (en) * | 1988-03-19 | 1989-12-27 | 亥普沃斯工程有限公司 | The error compensation system of machine tool and so on |
| CN102183911A (en) * | 2010-12-29 | 2011-09-14 | 江苏扬力集团有限公司 | Control system of servo press machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6173020A (en) * | 1984-09-18 | 1986-04-15 | Takenaka Doboku Co Ltd | Automatic measuring device for underground displacement |
| JPH0679581A (en) * | 1992-02-07 | 1994-03-22 | Citizen Watch Co Ltd | Automatic cutting conditions setting device for nc machine tool |
| JP5035970B2 (en) * | 2007-04-27 | 2012-09-26 | 株式会社島精機製作所 | Sheet material cutting method and cutting apparatus |
| EP2196294B1 (en) * | 2007-09-25 | 2014-07-09 | Shima Seiki Mfg., Ltd | Cutting machine |
| CN101623135B (en) * | 2009-08-10 | 2010-12-01 | 山东凯华电源有限责任公司 | Deformation knife pressure compensation method for lower beam of clothes cutting designing integrative machine |
| CN102672534B (en) * | 2011-03-16 | 2015-04-15 | 发得科技工业股份有限公司 | Dynamic deformation automatic correcting device |
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2012
- 2012-10-24 CN CN201210407822.2A patent/CN103776360B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100136A (en) * | 1987-01-06 | 1988-07-20 | 西安交通大学 | A kind of adaptive controller of numerical control machine and control method |
| CN1038359A (en) * | 1988-03-19 | 1989-12-27 | 亥普沃斯工程有限公司 | The error compensation system of machine tool and so on |
| CN102183911A (en) * | 2010-12-29 | 2011-09-14 | 江苏扬力集团有限公司 | Control system of servo press machine |
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